Assignee
Inventors
- Sakae Hatano (5 patents)
- Yoshiharu Takada (25 patents)
- Kiyokazu Kainuma (4 patents)
- Isao Kanematsu (4 patents)
- Kazuo Asano (80 patents)
- Hisashi Yoshida (88 patents)
- Yoshinori Mori (10 patents)
US Patent 5006685 · Granted Apr 9, 1991